Mobile crusher unit

ABSTRACT

A recovery conveyor means for the recovery of crushed material from the crusher of a mobile crusher unit is disposed between the longitudinal beams of the chassis of the unit. The conveyor means comprises a frame and a recovery conveyor supported on the frame. Two rails are affixed to the inwardly facing sides of the longitudinal beams and rollers support the frame on the rails and permit it to the displaced longitudinally along the rails between the longitudinal beams for disassembling the recovery conveyor means from the unit. Immobile means hold the recovery conveyor means in a desired position on the chassis of the unit.

United States Patent [1 1 Vaillant et a1.

[451 Nov. '19, 1974 MOBILE CRUSHER UNIT [73] Assignee: Fives-Cail Babcock, Paris, France [22] Filed: Dec. 12, 1973 [21] Appl. No.: 423,899

[30] Foreign Application Priority Data Dec. 12, 1972 France 72.44120 [52] US. Cl. 241/101.7 [51] Int. Cl. B02c 21/02 [58] Field of Search 241/101 M, 101.7

[56] References Cited UNITED STATES PATENTS 1,611,026 12/1926 Gustafson 241/101 M X 1,876,460 9/1932 Knipple 241/101 M X 4/1952 Shelton 241/101 M 6/1972 Quinn 241/101 M X Primary Examiner-Roy Lake Assistant Examiner-E. F. Desmond Attorney, Agent, or Firm-Kurt Kelman [5 7] ABSTRACT A recovery conveyor means for the recovery of crushed material from the crusher of a mobile crusher unit is disposed between the longitudinal beams of the chassis of the unit. The conveyor means comprises a frame and a recovery conveyor supported on the frame. Two rails are affixed to the inwardly facing sides of the longitudinal beams and rollers support the frame on the rails and permit it to the displaced 1ongi-. tudinally along the rails between the longitudinal beams for disassembling the recovery conveyor means from the unit. lmmobile means hold the recovery conveyor means in a desired position on the chassis of the unit.

5 Claims, 2 Drawing Figures I l 1 I9 18 2O MOBILE CRUSHER UNIT The present invention relates to improvements in a mobile crusher unit comprising a mobile chassis, a crusher mounted on the chassis for crushing material, and a recovery conveyor means for the recovery of crushed material from the crusher.

In general, the chassis includes two transversely braced longitudinal beams and the recovery conveyor means is disposed between the longitudinal beams. Since the chassis beams are usually fairly high above the ground, it is impossible to have access to the conveyor means from the sides, which makes the maintenance and any needed repairs difficult.

It is the primary object of this invention to overcome this disadvantage by so mounting the recovery conveyor means that it may easily and rapidly taken off the unit when it must be repaired or other maintenance work is required.

This and other objects are accomplished in accordance with the invention by affixing two rails to the in wardly facing sides of the longitudinal chassis beams and supporting the frame of the recovery conveyor means on the rails. This permits the frame to be displaced longitudinally along the rails between the longitudinal beams for disassembling the recovery conveyor means from the unit. Immobile means or abutments hold the recovery conveyor means in a desired position on the chassis of the unit.

The above and other objects, advantages and features of the present invention will become more apparent from the following description of a now preferred embodiment thereof, taken in conjunction with the accompanying drawing wherein FIG. 1 is a partial side elevational view, partly in section, of a mobile crusher unit according to this invention and FIG. 2 is a transverse section, on a larger scale, of the unit and its recovery conveyor means.

Referring now to the drawing, there is shown a mobile crusher unit comprising a chassis constituted by two longitudinal beams 18, 20 which are braced by crossbeams, the chassis running on wheels 19. The chassis carries crusher 10, feed assembly 12 for feeding material to be crushed to the crusher, recovery conveyor means 14 for the recovery of crushed material from the crusher, and conveyor 16 which receives the crushed material from conveyor means 14 and removes the same from the unit. Conveyor 16 may be raised by hydraulic motor 17, or any other suitable lifting means, and may be oriented in any desired direction. Crusher units of this general type are well known, and the recovery conveyor means is disposed therein between the longitudinal chassis beams.

According to this invention, the recovery conveyor means includes frame 22 provided along the two lateral edges thereof with rollers 24 which support the recovery conveyor means frame on two rails 26 affixed to the inwardly facing sides of longitudinal beams 18, 20.

The charging end of the recovery conveyor means is positioned below the crusher and its discharge end is spaced therefrom and is positioned above the charging end or hopper of removal conveyor 16. The conveyor means thus is inclined and rises from the charging end to the discharge end, the dishcarge end being above the longitudinal beams. Rails 26, 26 are similarly inclined.

Immobile abutments 28 are affixed to the rails for holding recovery conveyor means 14 in a desired position on the chassis of the unit.

The upper end of the recovery conveyor means extends beyond the corresponding ends of longitudinal beams 18, 20, and drive means for the recovery conveyor, such as motor 40, is carried by the extending frame end. Tie rods 30 are affixed to support bracket 31 for supporting the extending frame end, this support bracket also supporting conveyor 16.

Frame 22 carries two rolls 32, 32 at the respective ends thereof, endless conveyor band 34 being trained over the rolls to constitute the recovery conveyor and the upper roll 32 being driven by motor 40 to operate the conveyor. The upper run of the endless conveyor band is supported by a series of rollers 36 which are carried by frame 22. As shown in FIG. 2, the rollers are so disposed as to impart to the conveyor the shape of a trough. The lower run of the endless conveyor band is supported by rollers 38 carried by frame 22.

Frame 22 also carries baffle means consituted by deflecting sheets 42 along the edges of the conveyor to prevent the crushed material from falling off the conveyor, the deflecting sheets being so disposed in the region of the crusher that they serve to guide the crushed material into the trough of the conveyor.

Flaps 41 are affixed to the baffle means in frictional engagement with endless conveyor band 34 to prevent the escape of material laterally therefrom.

In operation, when it is desired to gain ready access to recovery conveyor means 14 for purposes of maintenance or repair, for instance, it is only necessary to detach tie rods 30 and to pull frame 22 out by means of a winch or any other suitable device. It may then be attached to a mobile crane to move it to a location where the maintenance or repair work is done.

What we claim is:

1. A mobile crusher unit comprising 1. a chassis including a. two transversely braced longitudinal beams each having an inwardly facing side,

2. a crusher mounted on the chassis for crushing material,

3. a recovery conveyor means for the recovery of crushed material from the crusher, the recovery conveyor means being disposed between the longitudinal beams and including a. a frame and b. a recovery conveyor supported on the frame,

4. two rails affixed to the inwardly facing sides of the longitudinal beams,

5. rollers supporting the recovery conveyor means frame on the rails and permitting the frame to be displaced longitudinally along the rails between the longitudinal beams for disassembling the recovery conveyor means from the unit, and

6. immobile means for holding the recovery conveyor means in a desired position on the chassis of the unit.

2. The mobile crusher unit of claim 1, wherein one of the ends of the recovery conveyor means frame extends beyond the corresponding ends of the longitudinal beams, and drive means for the recovery conveyor is carried by the extending frame end.

3. The mobile crusher unit of claim 2, further comprising tie rod means supporting the extending frame end.

4. The mobile crusher unit of claim 1, wherein the reveyor means being inclined and rising from the charging end to the discharge end, the discharge end being above the longitudinal beams, the rails being similarly inclined, and abutment means on the chassis and the frame cooperating to limit the displacement of the frame along the rails to hold the recovery conveyor means in the desired position. 

1. A mobile crusher unit comprising
 1. a chassis including a. two transversely braced longitudinal beams each having an inwardly facing side,
 2. a crusher mounted on the chassis for crushing material,
 3. a recovery conveyor means for the recovery of crushed material from the crusher, the recovery conveyor means being disposed between the longitudinal beams and including a. a frame and b. a recovery conveyor supported on the frame,
 4. two rails affixed to the inwardly facing sides of the longitudinal beams,
 5. rollers supporting the recovery conveyor means frame on the rails and permitting the frame to be displaced longitudinally along the rails between the longitudinal beams for disassembling the recovery conveyor means from the unit, and
 6. immobile means for holding the recovery conveyor means in a desired position on the chassis of the unit.
 2. a crusher mounted on the chassis for crushing material,
 2. The mobile crusher unit of claim 1, wherein one of the ends of the recovery conveyor means frame extends beyond the corresponding ends of the longitudinal beams, and drive means for the recovery conveyor is carried by the extending frame end.
 3. The mobile crusher unit of claim 2, further comprising tie rod means supporting the extending frame end.
 3. a recovery conveyor means for the recovery of crushed material from the crusher, the recovery conveyor means being disposed between the longitudinal beams and including a. a frame and b. a recovery conveyor supported on the frame,
 4. two rails affixed to the inwardly facing sides of the longitudinal beams,
 4. The mobile crusher unit of claim 1, wherein the recovery conveyor is an endless conveyor and the frame carries baffle means along the edges of the conveyor to prevent the crushed material from falling off the conveyor.
 5. The mobile crusher unit of claim 1, wherein the recovery conveyor means has a charging end below the crusher and a discharge end spaced therefrom, the conveyor means being inclined and rising from the charging end to the diScharge end, the discharge end being above the longitudinal beams, the rails being similarly inclined, and abutment means on the chassis and the frame cooperating to limit the displacement of the frame along the rails to hold the recovery conveyor means in the desired position.
 5. rollers supporting the recovery conveyor means frame on the rails and permitting the frame to be displaced longitudinally along the rails between the longitudinal beams for disassembling the recovery conveyor means from the unit, and
 6. immobile means for holding the recovery conveyor means in a desired position on the chassis of the unit. 